Silicone and PVC (polyvinyl chloride) are widely used polymer materials in modern industry and daily life. From electronic product casings to household items, from medical equipment accessories to children's toys, their presence can be seen everywhere. However, despite both possessing a certain degree of flexibility and plasticity, they have many essential differences. A deeper understanding of the difference between silicone and PVC not only helps professionals make precise decisions on material selection, but also enables ordinary consumers to have a better understanding when choosing products.
From the perspective of composition and basic characteristics, silicone is a highly active and environmentally friendly material, mainly composed of silicon dioxide. Its unique open porous structure endows it with excellent adsorption performance and high stability. Its chemical properties are stable, and it hardly reacts with any substance except strong alkali and hydrofluoric acid; PVC is polyvinyl chloride, which is polymerized by ethylene monomer under the action of initiators. It is a thermoplastic with low cost, good flame resistance, insulation and chemical stability.
In terms of physical properties, silicone gel is soft and has a delicate touch, excellent flexibility and elasticity, good resilience, and can withstand multiple bends without deformation; PVC has a wide range of adjustable hardness, and can be transformed from a hard material to a soft material by adding plasticizers. However, even if adjusted to a soft material, its softness and elasticity are difficult to compare with silicone, and PVC has a relatively rough hand feel. For example, touching silicone kitchenware and PVC plastic products with your hands can clearly feel the softness and skin friendliness of silicone and the stiffness of PVC.
In terms of chemical properties, silicone has strong resistance to ultraviolet radiation and can maintain stability even when exposed to sunlight for a long time; Outstanding high temperature resistance, capable of withstanding temperatures of around 300 ℃ without producing harmful substances in high-temperature environments. It can be used to make baking molds and other products that come into contact with high-temperature food. PVC has good chemical stability and can resist the erosion of many common chemicals, but its high temperature resistance is poor. It may start to deform at around 70 ℃ and may release harmful gases at high temperatures, making it unsuitable for high-temperature environments.
In terms of quality control, Dibo Silicone has established a sound quality management and testing system, strictly controlling every link from raw material procurement, production process to finished product inspection to ensure that product quality meets high standards. At the same time, we focus on customer service, providing timely, efficient, and professional pre-sales, in sales, and after-sales services, tailoring solutions for customers, and providing technical support. With high-quality products and services, we have won the trust of many customers. Our products are not only popular in China, but also exported to Europe, America, Southeast Asia and other places.
In summary, there are significant differences between silicone and PVC in terms of composition structure, physical and chemical properties, processing applications, and environmental safety. When selecting materials in practice, it is necessary to comprehensively consider factors such as specific usage scenarios, performance requirements, cost budgets, and environmental standards in order to make the most of them and achieve the best results.
